Search for a vector-like quark T' → tH via the diphoton decay mode of the Higgs boson in proton-proton collisions at √s = 13 TeV
dc.contributor.author | Tumasyan, Armen | pt_BR |
dc.contributor.author | Silveira, Gustavo Gil da | pt_BR |
dc.contributor.author | Bernardes, César Augusto | pt_BR |
dc.contributor.author | CMS Collaboration | pt_BR |
dc.date.accessioned | 2023-12-16T03:26:51Z | pt_BR |
dc.date.issued | 2023 | pt_BR |
dc.identifier.issn | 1029-8479 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/268531 | pt_BR |
dc.description.abstract | A search for the electroweak production of a vector-like quark T' , decaying to a top quark and a Higgs boson is presented. The search is based on a sample of proton-proton collision events recorded at the LHC at √ s = 13 TeV, corresponding to an integrated luminosity of 138 fb−1 . This is the first T' search that exploits the Higgs boson decay to a pair of photons. For narrow isospin singlet T' states with masses up to 1.1 TeV, the excellent diphoton invariant mass resolution of 1–2% results in an increased sensitivity compared to previous searches based on the same production mechanism. The electroweak production of a T' quark with mass up to 960 GeV is excluded at 95% confidence level, assuming a coupling strength κT = 0.25 and a relative decay width Γ/MT' < 5%. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | The journal of high energy physics. Trieste. No. 9 (Sept. 2023), 57, 40 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Beyond standard model | en |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | Hadron-Hadron scattering | en |
dc.subject | Bosons de higgs | pt_BR |
dc.subject | Colisões proton-proton | pt_BR |
dc.subject | Top Physics | en |
dc.title | Search for a vector-like quark T' → tH via the diphoton decay mode of the Higgs boson in proton-proton collisions at √s = 13 TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001193130 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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